Closure for containers



0a. 19, 1943. A, UMBACH 2,332,327

CLOSURE FOR COIJTAIMEHRS Filed Dec. 20, 1940 2 unnnnu J 7 67K INYENTOR BY 7 a 2 ATTORN EYS Patented oct. 19, 1943 e Ant 1 enosonnron oolv'rarnnnsf J invention relates to closures for contain ers-andmore'especially to a closure foran.atom' izerfof" the type disclosed in myco pen'ding nca'uo semi No. 298,012. V

An'object of this invention is a simple, efficient and inexpensive closure which provides" a tight seal'for'the: discharge opening" of an atomizer or 4 container. e I g I In the atomizer disclosed insaid application, Seria1 No. 298,012, an annular band completes the assembly of the component parts andis provided withan opening through which the atomized liquid is discharged. In the preferred embodiment of the present invention, the band is equipped with a slider which carries a strip of sealing material such, forexample, asrubber.

movement of the slider to and from sealing position,-the sealing material is maintained out of contact with th -band but in sealing position the sealing material engages the band around'the.

dischargeffopening' to' form a tight seal. With this arrangement, movement of the slider into and out of sealing position is not impeded by the dragwhich wouldbe present. with a-structure.

having the sealing-strip at all times in engagement with the band.

Other objects, novel features and advantages of this invention will become apparent from the following specification and accompanying drawing, wherein:

Fig. 1 is a side elevation partially brokenaway illustrating a preferred embodiment of the invention with the slider in sealing position;

Fig. 2 is a plan view of Fig. 1;

Fig. 3 is a perspective view of the slider;

Fig. 4 is a section substantially on the line 4-4 of Fig. 1;

Fig. 5 is a view similar to Fig. 4 out of sealing position;

Fig. 6 is a side elevation of a modification of the invention with the slider in sealing position;

Fig. 7 is a plan view partially broken away, and

Fig. 8 is a fragmentary view similar to Fig. 6

, with the slider out of sealing position.

For illustrative purposes, this invention is disclosed as applied to the atomizer illustrated in said co-pending application, Serial No. 298,012. The atomizer structure consists in general of a bulb ll together with component parts, which are attached by means of a band l2 to the neck l3 of a container [4. The hand I2 is provided with a raised or ofiset portion l5 having a discharge opening IS in alinement with the atomwith the slider The structure of the slider i'sgsuch that during jizing opening I! corresponding to the aperturel3-in the cup member l3 illustrated insaid applicatiornSerial No. 298,012. A thin rneta-l slider 18 is "providedwith'a bottonr flange manua topflange 20 having arm's 2|. This slider issupported by the band l2 with the flange IIi-andthe arms 'ZPco-operat'ingQWith surfaceson the-band to holdthe slider' onthe band-for bacls and forth movement. =A'stri'p '2z of sealingmaterial such, for example, as rubber,is arranged on the inner surface of the slide-r I-8 and is held in place endtabs-"23 and 24 turned inwardly over the ends of the-strip. Theedge of thetab 2311s embedded in the sealing strip- 22 while the inner end of the tab 214 is flushw-ith tnesean'ng material to pro-' vide an-abutment,- the purpose oi which will later become apparent; I

*The slider i 8 is movable between its: sealing position illustrated in Fig. 4 and the position illustrated in Fig. 5. In its sealing position, the slider overlies the offset portion S5 with the sea-b ing-material'engag'ing the surfa'ce. of the offset portion to close 'tightly the opening. I6. Theendl walls" of the offset portioniS form shoulders 25 and 26, one of which 25 as is:clearly'shown in Fig. 4 is engaged by-the inner edge of the tab 214. to limit movement of the slider in one direction, thereby locating the slider in sealing position with the tab 23 resting on th band l2 and engaging the shoulder 26.

Upon movement of the slider Hi from the position shown in Fig. 4 to the position shown in Fig. 5, the rounded portion of the tab 23 rides up the shoulder 26 of the offset I5 and slides over the top of the offset with the tab 24 riding on th main surface of the band. After suificient movement of the slider, the tab 23 moves out of engagement with the surface. of the ofiset portion I5 and into engagement with the main portion of the band, the necessary amount of radial movement of theslider being permitted by reason of the resiliency of the flanges I9 and 20. Upon movement of the slider from the position shown in Fig. 5 to the position shown in Fig. 4, the rounded portion of the tab 23 engages the shoulder 25 and is cammed outwardly sufficiently to ride on to the top surface of the portion l5 and such movement of the slider is continued until the abutment formed by the end of the tab 24 engages the shoulder 25. Due to the fact that the tabs 23 and 24 ar turned inwardly over the movement of the slider into and out of sealin position by reason of metal to metal contact rather than rubber to metal contact, the latter producing considerably more friction than the former. The sealing material comes into contact with the outer face of the ollset portion I5 only after the tab 23 rides down the shoulder 26 off the offset portion [5.

In the modification illustrated in Figs. 6, 'I and 8, the slider 28 is supported on the band [2 by the bottom flange 29 and arms 3| extending from a top flange 30. is contained in a pocket 33 formed in the slider 28 and is held in place by suitable adhesive; In the slider is provided an offset portion, 34 which cooperates with a nib 35 on th band I2 to locate the slider 28 in sealing position relative to the discharge opening I 6 in the oflset portion l5. The two elements 34 and 35 constitute means for locating the lider 24 in sealing position.

While I have shown this closure in relation with an atomizer, it will be readily understood that it may be adapted to any container having a similar curved band or portion thereof.

I claim:

l. A device of the character described comprising an annular band having shoulders and an ofiset portion containing an aperture, a slider havin resilient flanges engagin said shoulders to slidably attach said slider to said band, a

strip of sealing material engaging the inner surface of said slider, and a tab at each end of said slider extending inwardly over the ends and around the inner corners of said strip to attach it to said slider, said tabs engaging said band and A strip of sealing material 32 a slider having resilient means slidably attaching it to said band, a strip of sealing material engaging the inner surface of said slider, and a tab at each end of said slider extending inwardly over the ends and around the inner corners of said sealing material strip to attach it to the slider, said tabs engaging said band and serving to maintain said strip out of contact with said band except when said strip overlies said offset portion.

4. A device according to claim 3 in which the edge of one tab is arranged to constitute an abutment engageabl with one end wall of said v band having shoulders and an apertured raised portion, a slidable clip having resilient means for attaching it to said band, a strip of sealing material engaging theinner surface of said clip, and a tab at each end of said clip extending inwardly 6. A closure according to claim 5 in which the curved portion of said tabs form a smooth sliding surface against the curved band and the end of one tabis so arranged to provide a stop in the sealing position when contact is made with said tab against one end wall of the raised portion.

'7. A device of the character described comprising an annular band having shoulders and an offset portion containing an aperture a slider hav-.

ing resilient flanges engaging said shoulders to slidably attach said slider to said band, a pair of;

tabs extending inwardly from the slider into engagement with said band, and a strip of sealing material located between said tabs, saidstrip being of less thickness than the inward extent of said tabs, whereby said strip is maintained out of contact with said band except when said strip overlies said offset portion ALEX IMBACH. 

